Foam Chamber is used in one of the most common
application to protect vertical fixed roof (cone) liquid
storage tanks, with or without internal floating roof
with the low expansion foam system. The application
of foam is on the basis that the risk comprises the
total surface area of the fuel. The foam system design
guidelines generally used are in accordance with
NFPA-11, standard.
Foam chambers are defined by NFPA-11 as Type
II discharge outlets for delivering the foam to the
surface of a flammable liquid. The Foam Chambers
are widely used with the Inline Foam Inductor, Balance
Pressure Foam Proportioning system, Bladder Tank
Proportioner or Foam Tender.